body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -moz-user-select:none; /* Firefox私有属性 */
  -webkit-user-select:none; /* WebKit内核私有属性 */
  -ms-user-select:none; /* IE私有属性(IE10及以后) */
  -khtml-user-select:none; /* KHTML内核私有属性 */
  -o-user-select:none; /* Opera私有属性 */
  user-select:none; /* CSS3属性 */
}
textarea,select,input{
    -webkit-appearance: none; 
    -moz-appearance: none; 
    -o-appearance: none; 
    appearance: none;
    border: none;
    outline: none;
}
code {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
    monospace;
}
*, :after, :before {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-overflow-scrolling:touch;
}
.loading{
  /* background-color: rgba(58, 58, 58, 0.856); */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.loading span{
  color: rgb(61, 61, 61);
  margin-top: 20px;
}
.hidden{
  display: none;
}
.loading div{
  position: absolute;
  top: 5px;
  width: 50px;
  height: 50px;
  border-top: 5px solid rgb(0, 140, 255);
  border-left: 5px solid rgb(34, 156, 255);
  border-bottom: 5px solid rgb(52, 163, 255);
  border-right: 5px solid rgb(87, 179, 255);
  border-radius: 50%;
  animation: loading 1s infinite linear;
}
@keyframes loading{
  0%{
    transform: rotate(0deg);
  }
  100%{
    transform: rotate(360deg);
  }
}